摘要
在系统收集和整理清泉-柴窑区块三叠系延长组油层资料的基础上,利用大量的分析化验资料,对该延长组储层内岩石学特征、孔喉特征、物性特征、成岩作用及油气富集规律进行了详细的研究。研究表明:清泉-柴窑区块三叠系延长组油层属于低孔、低-特低渗透性储层,岩石以长石砂岩为主,具有高结构成熟度、低成分成熟度的特点,储集空间以残余原生粒间孔为主。油气富集主要受物性、沉积相、构造和生储盖遮挡条件的的控制。
Based on information of Yanchang Formation of Qingquan-Chaiyao block by collectling and arrangement systemly,using a large amount of analytical data,petrology,pore structure,physical characteristics,diagenesis and hydrocarbon enrichment were studied in detail.The results show that the reservoir has characteristics of low porosity,low and ultra-low permeability reservoir,rock mainly with feldspar sandstone,high textural maturity,low compositional maturity,reservoir space mainly with primary residual inter particle pores.Oil and gas accumulation is mainly controlled by the physical characteristics,sedimentary facies,tectonic and source-reservoir-cap shielding condition.
出处
《辽宁化工》
CAS
2012年第1期65-67,71,共4页
Liaoning Chemical Industry
关键词
孔喉特征
成岩作用
富集规律
下寺湾
Pore-throat characteristics
Diagenesis
Enrichment regularity
Xiasiwan oil field